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2.2 Location of the Noise Sensitive Receiver (NSR)
For the purpose of this Technical Memorandum any domestic premises, hotel, hostel, temporary housing accommodation, hospital, medical
clinic, educational institution, place of public worship, library,
court of law, or performing arts centre shall be considered to be a
NSR.
Any other premises or place, not being in the nature of either
industrial or commercial premises, which is considered by the
Authority to have a similar sensitivity to noise as the premises and places above shall also be considered to be a NSR. Any premises or
place shall, however, be considered to be a NSR only when it is in
use for its intended purpose.
2.3 Determination of the Area Sensitivity Rating (ASR)
2.3.1
General
The ASR is a function of the type of area within which the NSR is
located and the degree of
the degree of the effect on the NSR of particular Influencing Factors (IFs) as defined in Section 2.3.3. After a
careful examination of the area under consideration and the effect
of any IFs, the ASR may be determined from Table 1.
2.3.2 Type of area within which the Noise Sensitive Receiver
(NSR) is located
The Authority shall have regard to an area of adequate size when.
determining the type of area wichin which the NSR is located in
accordance with the descriptions in Table 1. Typically, in urban
areas an area of 100 m radius around the NSR should be adequate,
whereas in sparsely developed areas, such as rural districts,
area of 500 m radius or even more should be considered, depending
upon the circumstances. Special factors may dictate that other
distances should be used at the discretion of the Authority.
an
When determining the type of area within which the NSR is located the Authority should not generally take into account the presence of
the premises or place from which the noise under investigation is emanating. However, if the Authority considers that such a premises
or place by virtue of its size or other characteristics plays a major role in determining the type of area within which the NSR is
located, it should be taken into account.
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